Thanks you two. My mother brought some goats milk to feed them and they currently are in a little basket with a warm water bottle. She said that we should put them on the side porch in case the mother came back. The thing was when I found them a yellow cat was near them and ran away. I walked away so it could come back to it but it hasn't and the cat been sniffing for them. We were under the impression that it was a male cat trying to attack the kittens (plus with three other strays around it may not be good). But I'll put them back outside soon and see what happens. It doesn't help that it's freezing and damp out there either. :/
